iommu/amd: Split enable_iommus() routine

Split the enable_iommus() routine so that a part of it can
run in early code.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2012-06-12 16:30:06 +02:00
commit 11ee5ac47b